High-voltage switch operating mechanism

Abstract

The invention provides a high-voltage switch operating mechanism, and relates to an interlocking mechanism of a breaker. The high-voltage switch operating mechanism comprises an energy storage device, a three-connecting-rod device, a switching-on latch locker, a switching-off latch locker, an oil buffer device, and a mechanical anti-bouncer. The energy storage device ensures a breaking spring which is on a same center line with a closing spring to store energy when the closing spring is released, preventing energy loss generated by a lever camber line, and saving closing spring force. The structure is low in impact on a mechanism, and life of a mechanism machine is prolonged. The switching-on locker makes locking and tripping being more aligned with a circumference mechanics force-saving principle, closing operation force becomes small, and reliability is improved. Technical problems that closing-breaking and breaking-closing of a high-voltage breaker are not stable are solved. The switching-off latch locker uses an integrated structure of a switching-off connecting lever, a long shaft, and a spring, and solves technical problems that closing-breaking and breaking-closing of a high-voltage breaker are not stable. The three-connecting-rod structure presses the breaking spring in a straight line, thereby reducing mechanism component impact forces, reducing energy loss, and improving mechanism machine life.

Description

technical field [0001] The invention relates to the technical field of interlocking mechanisms of circuit breakers, in particular to a high-voltage switch operating mechanism with a spring mechanism. Background technique [0002] As an important power transmission and transformation equipment in the power grid, the high-voltage switch has developed rapidly in the past ten years, and has realized the development goals of three-phase common box, miniaturization, and intelligence. The difficulty of design and manufacture is limited, and there has been no progress in the past 30 years. Although new patents have occasionally appeared in the past few decades, due to design defects, they have not been used for power grid operation. The old products of CT20 and CT30 have been used all the time. The market is in urgent need of new technology, new structure, high reliability, small size, and low cost. The new mechanism has been successfully developed to support miniaturized and intell...

AI Technical Summary

Problems solved by technology

[0002] As an important power transmission and transformation equipment in the power grid, the high-voltage switch has developed rapidly in the past ten years, and has realized the development goals of three-phase common box, miniaturization, and intelligence. The difficulty of design and manufacture is limited, and there has been no progress in the past 30 years. Over the past few decades, although new patents have occasionally appeared, they have not been used for power grid operation due to design defects.

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